The plan always included a grand finale with a look at the most devastatingly beautiful wineries in California, so I took heed and looked locally, but perhaps not quite so obviously for dramatic winery buildings.
My gut told me to go north, and north I went, through the surprisingly modest wineries of Oregon (sorry, guys!) before finding some striking designs in Washington.
Unlike some previous area of focus, Washington State really has everything one needs to justify a little architectural extravagance. The wine industry is exploding there, the land is plentiful, and access and infrastructure for the eno-tourist is in place. All that's left? The wow factor!